Grace Aidiniantz set up the museum 25 years ago at 221B Baker Street, one of the most famous addresses in fiction, which earned her a 20 million ($45.8 million) fortune, the court heard.
But now, says one of her daughters, Aidiniantz has been left penniless after she was "robbed" of her shares in the museum - along with its considerable revenue in ticket sales - by her elder son. John Aidiniantz, 69, launched a legal challenge against his sisters and brother, seeking to vary the terms of a ruling on his ailing 88-year-old mother's care.
They opposed his application amid claims he could withdraw her medication and end her life.
The judge, Justice Peter Jackson, described the case as a "poisonous feud" in a "lamentable" series of actions. "Very few families descend to the level of mutual acrimony that exists in this family."
Riley said her brother had "robbed" their mother, adding: "She has now not got a penny to her name when she was worth 20 million."
The judge ruled she should remain in a care home for her own protection but made no ruling on the allegations regarding finances nor the claim that John Aidiniantz posed a risk to their mother's life.Telegraph Group Ltd

